Finding the Fourth Proportional to 426,810.31, 589,120.95 and 281,721.99
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Solution
The fourth proportional to 426,810.31, 589,120.95 and 281,721.99 is: 388,857.36
Step by Step Solution
- Step 1: Write the proportion equation
426,810.31 : 589,120.95 = 281,721.99 : x - Step 2: Convert to fraction form
426,810.31/589,120.95 = 281,721.99/x - Step 3: Cross multiply
426,810.31x = 589,120.95 × 281,721.99 - Step 4: Simplify right side
426,810.31x = 165,968,327,857.49 - Step 5: Solve for x
x = 165,968,327,857.49/426,810.31 - Step 6: Final answer
x = 388,857.36
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.